Had my 10 year old son take some practice CDL tests

Not to keep beating a dead horse but...

the static air test, which is truck off and time for one minute. Can’t loose more then 3psi.

Brake application test, which is truck off and brake pedal pushed for one minute. Can’t loose more then 4 psi.

This is for a combination. Just got my CDL A last week.... and I still remember, wow things are looking up!

 

the way I was taught is to remember the number. Single vehicle = 1 "2" Combination Vehicle = 1, 2 "3" so just add one to the number of "parts" or vehicles.

 

Op
While your at it make sure he earns his drive time..

 

This is what our kids should be doing instead of playing on an iPad all day, or learning how to become victims on social media, instead of victors in real life.